/* Iris - trustiris.com - prototype v2
   Brand palette: Clarity Blue #007ACC, Deep Navy #0B1F4F, Bright Aqua #00C2CB,
   Signal Yellow #FFD23F (sparingly), Charcoal #333333, White #FFFFFF.
   No plexus background. Focus colour swapped to Clarity Blue for AA contrast on white.
*/

:root {
  --clarity-blue: #007ACC;
  --deep-navy: #0B1F4F;
  --bright-aqua: #00C2CB;
  --signal-yellow: #FFD23F;
  --charcoal-grey: #333333;
  --white: #FFFFFF;
  --navy-rgb: 11, 31, 79;
  --aqua-rgb: 0, 194, 203;
  --header-height: 88px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--charcoal-grey);
  font-family: Calibri, -apple-system, "Segoe UI", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

body,
button,
input,
textarea {
  font: inherit;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

/* Focus colour: Clarity Blue (~5:1 on white, ~7:1 on navy) */
:focus-visible {
  outline: 3px solid var(--clarity-blue);
  outline-offset: 4px;
}

/* On navy sections, switch to Bright Aqua (~6:1 on navy) */
.section-navy :focus-visible {
  outline-color: var(--bright-aqua);
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 20;
  transform: translateY(-140%);
  background: var(--deep-navy);
  color: var(--white);
  padding: 10px 14px;
  border-radius: 6px;
  font-family: Poppins, Calibri, sans-serif;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 48px);
  background: var(--white);
  border-bottom: 1px solid rgba(var(--navy-rgb), 0.16);
}

.brand {
  display: inline-flex;
  width: 132px;
  align-items: center;
}

.brand img {
  width: 132px;
  height: 44px;
  object-fit: contain;
  object-position: left center;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 18px;
  overflow-x: auto;
  padding: 8px 0;
  scrollbar-width: none;
}

.site-nav::-webkit-scrollbar {
  display: none;
}

.site-nav a,
.header-cta,
.button {
  font-family: Poppins, Calibri, sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a {
  color: var(--deep-navy);
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  border-bottom-color: var(--bright-aqua);
}

.header-cta,
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--clarity-blue);
  border-radius: 8px;
  padding: 11px 18px;
  cursor: pointer;
}

.header-cta,
.button-primary {
  background: var(--clarity-blue);
  color: var(--white);
}

.button-primary:disabled {
  opacity: 0.55;
  cursor: progress;
}

.header-cta:hover,
.button:hover {
  opacity: 0.9;
}

.section {
  position: relative;
  display: flex;
  align-items: center;
  padding: clamp(56px, 8vw, 96px) 0;
  border-bottom: 1px solid rgba(var(--navy-rgb), 0.12);
}

.section-inner {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 36px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--bright-aqua);
  font-family: Poppins, Calibri, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--deep-navy);
  font-family: Poppins, Calibri, sans-serif;
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: 2.6rem;
  font-weight: 700;
}

h2 {
  font-size: 2.15rem;
  font-weight: 600;
}

h3 {
  font-size: 1.16rem;
  font-weight: 600;
}

p {
  margin: 16px 0 0;
  max-width: 68ch;
}

.hero {
  padding-top: clamp(72px, 10vw, 120px);
  padding-bottom: clamp(56px, 8vw, 100px);
}

.hero-inner {
  max-width: 880px;
}

.hero-subhead {
  color: var(--charcoal-grey);
  font-size: 1.2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 56px 0 0;
  padding: 0;
  list-style: none;
}

.hero-pillars li {
  position: relative;
  padding-top: 18px;
  color: var(--deep-navy);
  font-family: Poppins, Calibri, sans-serif;
  font-weight: 600;
  border-top: 3px solid var(--bright-aqua);
}

.verb-grid,
.why-grid,
.deployment-grid,
.privacy-grid {
  display: grid;
  gap: 18px;
}

.verb-grid,
.why-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.deployment-grid,
.privacy-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.privacy-grid {
  margin-top: 36px;
}

.verb-card,
.why-card,
.deployment-grid article,
.privacy-grid article {
  border: 1px solid rgba(var(--navy-rgb), 0.16);
  border-radius: 8px;
  padding: 28px;
  background: var(--white);
}

.verb-card {
  position: relative;
  padding-top: 36px;
}

.verb-card::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 28px;
  width: 40px;
  height: 4px;
  background: var(--bright-aqua);
}

.proof-line,
.context-label,
.field-help,
.contact-note {
  color: var(--deep-navy);
  font-family: Poppins, Calibri, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
}

.section-navy {
  background: var(--deep-navy);
  color: var(--white);
  border-bottom-color: rgba(var(--aqua-rgb), 0.34);
}

.section-navy h2,
.section-navy h3,
.section-navy p {
  color: var(--white);
}

.section-navy .eyebrow {
  color: var(--bright-aqua);
}

.engine-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(36px, 6vw, 72px);
  align-items: start;
}

.capability-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
}

.capability-list article {
  padding: 0 0 18px 18px;
  border-left: 4px solid var(--bright-aqua);
  border-bottom: 1px solid rgba(var(--aqua-rgb), 0.34);
}

.why-card {
  display: flex;
  flex-direction: column;
}

.why-card h3::after {
  content: "";
  display: block;
  width: 36px;
  height: 4px;
  margin-top: 18px;
  background: var(--signal-yellow);
}

.founder-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 6vw, 76px);
  align-items: center;
}

.founder-visual {
  aspect-ratio: 4 / 5;
  border: 1px solid rgba(var(--navy-rgb), 0.16);
  border-radius: 8px;
  background: var(--deep-navy);
}

.ip-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
}

.contact-section {
  padding-bottom: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(30px, 6vw, 70px);
  align-items: start;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  border: 1px solid rgba(var(--navy-rgb), 0.16);
  border-radius: 8px;
  padding: clamp(18px, 3vw, 30px);
}

.field-group {
  display: grid;
  gap: 7px;
}

.field-full {
  grid-column: 1 / -1;
}

label {
  color: var(--deep-navy);
  font-family: Poppins, Calibri, sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(var(--navy-rgb), 0.34);
  border-radius: 6px;
  padding: 12px 13px;
  background: var(--white);
  color: var(--charcoal-grey);
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--clarity-blue);
}

.field-help {
  margin-top: 2px;
  text-align: right;
}

.hidden-field {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.form-status {
  min-height: 1.6em;
  color: var(--deep-navy);
  font-weight: 600;
}

.contact-success {
  border: 1px solid var(--bright-aqua);
  border-left: 6px solid var(--bright-aqua);
  border-radius: 8px;
  padding: clamp(18px, 3vw, 30px);
  background: var(--white);
}

.contact-success h3 {
  font-size: 1.4rem;
}

.site-footer {
  width: min(1120px, calc(100% - 36px));
  margin: clamp(56px, 8vw, 96px) auto 0;
  padding: 24px 0;
  color: var(--charcoal-grey);
  border-top: 1px solid rgba(var(--navy-rgb), 0.12);
}

.site-footer p {
  margin: 6px 0 0;
  max-width: none;
}

.site-footer a {
  color: var(--deep-navy);
  font-family: Poppins, Calibri, sans-serif;
  font-weight: 600;
  text-decoration-color: var(--bright-aqua);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

@media (max-width: 1024px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .site-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    order: 3;
  }

  .engine-grid,
  .founder-grid,
  .ip-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 132px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.72rem;
  }

  .hero-subhead {
    font-size: 1.05rem;
  }

  .hero-pillars,
  .verb-grid,
  .why-grid,
  .deployment-grid,
  .privacy-grid,
  .contact-form {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .site-header {
    gap: 12px;
    padding: 12px 18px;
  }

  .brand,
  .brand img {
    width: 106px;
  }

  .header-cta {
    padding-inline: 13px;
  }

  .section-inner,
  .site-footer {
    width: min(100% - 28px, 1120px);
  }

  .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}